Sheet-delivery mechanism for printing-machines.



No. 757,248. PATENTED APR. 12, 1904.

. H. M. BARBER. l SHEET DELIVERY MEGHANISM FOR PRINTING MACHINES.

APPLICATION FILED JUNE 30. 1903.

N0 MODEL.

5 SHEETS-SHEET 1.

PATEN'IED APR. 12, 1904.

H. M. BARBER. SHEET DELIVERY MEGHANISM FOR PRINTING MACHINES.

APPLIOATION FILED JUNE 30, 1903.

5 SHEETS--BHEET 2.

N0 MODEL.

NRV-5.12.48.

v PTENTED APB.. l2, 1904.-

` E. M. BARBER. SHEET DELIVERY MEGEANISM EUR PRINTING MACHINES.

APPLIOATION FILED JUNE 30, 1903.

5 SHEETS-SHEET 3.

N0 MODEL.

IQ E

N0. 757,248. PTBNTED APR. 12, 1904. H. M. BARBER. SHEET DELIVERYMECHANISM FOR PRINTING MACHINES.

APPLICATION FILED JUNE 30, 1903. H0 IODEL. 5 SHEETS-SHEET 4.

I Q l N H. M. BARBER.

SHEET DELIVERY MEGHANISM FOR PRINTING MACHINES.

-APPLIOA'IIGN FILED JUNE 30. 1903.

5 SHEETS-SHEET 5.

N0 MODEL.

' UNITED STATES Patented April 12, 1904.

PATENT OFFICE.

HOWARD M. BARBER, OF STONINGTON, CONNECTICUT, ASSIGNOR TO C. B. COTTRELL& SONS COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

SHEET-DELIVERY M'ECHANISIVI FOR PRINTING-MACHINES.

SPECIFICATION' forming part of Letters Patent No. 757,248, dated April12, 1904.

Application led June 30, 1903.

T0 @ZZ whom it mag/ conce'm Be it known that I, HOWARD M.`BARBER, alcitizen of the United States, and a resident of Stonington, in thecounty of New London and State of Connecticut, have invented a new anduseful Improvement in Sheet-Delivery Mechanism for Printing-Machines, ofwhich the following is a specification.

The object of this invention is to provide, in a printing-machine, forthe delivery of the printed sheet'either sideupward, as may be desired;and to kthis end the invention consists in certain novel devices andcombinations hereinafter described and claimed, including an oscillatingfly for the delivery of the sheets upon a suitable receptacle, as areceiving-table, with their freshly-printed sides down-` ward and asheet-carriage which has a reciprocating or to-and-fro motion betweenthe im` pression-cylinder and such receptacle for the delivery of thesheets upon such receptacle with their printed sides upward.

Figure 1 is a side elevation of a two-revol lution printing-machinehaving applied to it an oscillating fly and a reciprocating sheet#carriage for interchangeable use according to my invention andV showingthe fly-delivery in'.

operation; Fig. 1', a side view of. gearing for operating thelydelivery; Fig. 2, a plan cor'- responding with Fig. 1; Fig. 3, alongitudinal vertical sectional view taken about in the line' 3 4 ofFig. 2, showing the fly operative; Fig. 4, a side elevation of themachine with the vreciprocating carriage operative, the iiy being thentaken away; Fig. 5, a longitudinal sec tional view taken in the line 34of Fig. 2 and showing the carriage operative; Fig. V5%, a longitudinalsectional view of the reciprocating carriage and of its containedendless-tape carrier; Fig. 6, a longitudinal view of a shaft whichserves to operate both the Hy and the carriage, the gearing on saidshaft being shown in section. Fig. 6% represents a transverse section ofsaid shaft and a face View of a pulley and clutch thereon, which will behereinafter described. Fig. 7 is a side view, partly in section, of thegearing for driving the tapecarrier; Fig. 8, a plan corresponding withSerial No. 163,676. (No model.)

Fig. 7; Fig. 9, a horizontal section of portions of said gearing. Figs.10, 11, 12 represent vertical sections taken, respectively, in the lines10, 11, 12 of Fig. 8.

2O designates the main framing of the Inachine; 21, theimpression-cylinder; 22, the table for receiving the sheets from thedelivery apparatus, said table being stationary at a suitable distancein front of the cylinder.

On the tops of the cylinder journal-boxes 23 are brackets 24, whichsupport the rod or shaft 25, carrying the stripping-fingers 26, and'inwhich are the bearings for the two `shafts 27 of the usualdelivery-pulleys 28.

The lower one of the shafts 27 derives constant rotary motion in theusual way from the gear 29 on the cylinder through a gear 30, whichturns on a stud 31, carried by one of the brackets 24, said gear 30gearing both with said gear 29 and with a gear 32 on the said shaft 27of the lower delivery-pulleys 28.

The reciprocating sheet-carriage consists, as shown in Figs. 2, 3, 4, 5,5*, of parallel side bars 33 and a connecting cross-bar 33%., the saidside bars being furnished with rollers 44, which run on stationary ways45, supported partly on brackets 46, carried by the main framing 20, andpartly on stands 47, erected on the front part of the receiving-table22. The said ways 45 are represented as having a slight downwardinclination from the cylinder toward the receiving-table. The said sidebars 33 have on their lower edges toothed racks which engage for thepurpose of imparting the reciprocating motion to the car` riage withtoothed gears'48 on a'horizontal shaft 43, supported in .fixed bearingsin stands 50 on the main framing. The said car- Figs. 1'7" and` 6) onthe shaft 43, hereinbefore mentioned as driving the carriage, and forthat purpose it is geared with said shaft by a gear 54 and pinions 5556, the said pinion 56 being on the sleeve 57 and meshing with thepinion 55, which runs loosely on a fixed stud 58 on one of the stands 50vand meshes with the gear 54. The said sleeve 57 derives the necessarymovements in opposite directions alternately for operating either thecarriage or the fly, as may be required, from a reciprocating toothedrack-bar 59, which slides in a stationary guide 59%', secured on theframing 2O and which meshes with a pinion 60 (see Figs. 1, ,4, and 6) onthe sleeve 57. As

shown in Fig. 6, the gears 48 for driving the carriage are permanentlyfastened to the shaft 43, the pinion 56 for driving the fly ispermanently fastened on the sleeve 57, and the pinion 60 is keyed rmlyon the sleeve, which, together with said pinion, are attached to theshaft 43 in such manner as to be capable of being fastened thereto fordriving the carriage or liberated therefrom when the fly and not thecarriage is to be used, as will be hereinafter fully explained. Thedevice (represented in Fig. 6) for thus securing the pinion and sleeveto the shaft consists in a collar 61, pinned permanently to the shaft bya pin 62 and secured to the pinion 60 by screws 63,

which are removable to liberate the shaft when the fly and not thecarriage is to be used, the fly being driven by the sleeve 57 and pinion56 without any operation of the shaft. Y

For the purpose of giving the rack-bar 59 such a reciprocating movementas will start the carriage or fly without shock I employ anintermittently-operating crank 65 68 69 on the shaft 64, whichcorresponds with the camshaft commonly employed for operating the fly ina fly-delivery and which makes one revolution for every two of thetwo-revolution impression-cylinder, the operation of said crank and theintermissions of its operation being controlled by a stationary cam 66,which is fastened upon the framing 20. The arm of the said crank, whichis fast on the shaft, is formed, as shown in Figs. 1 and 4, with a slot67 radial to its shaft, and to this slot is fitted aslide 68, whichcarries the crank-wrist 69, which is connected with the rack-bar by therod 70. The said slide carries also a roller 68%, which runs in thegroove 71 72 of the cam 66. The upper portion 71 of this groove is inthe form of the arc of approximately two hundred and forty degrees of acircle concentric I with the shaft 64. The lower 'portion 72 of saidgroove is approximately of the form of an arc the radius of which isequal to the length of the connecting-rod 70 and which is struck fromthe lowest point at'which the connection O* with the rack-bar is desiredto reach. As the crank revolves while the roller 66% runs in the part71of the cam-groove which is' concentric with Vthe shaft the wrist has itsfull throw, and it produces the full stroke of the rack-bar upward anddownward, and so produces the forward movement of the carriage or thefly, whichever is in use, toward the receiving-table and its returnmovement toward the cylinder; but while the roller is in the part 72 ofthe cam-,groove the crank is inoperative-that is, the rack-bar having nomovement the ily or the carriage, whichever is in use, remains for atime at rest after its return movement-and as the roller turns therounded corners between the parts 71 and 72 of the cam-groove cause thecrank-wrist to pass into and out of its operative position so graduallyas to stop or start the carriage or liy without shock.

To drive the endless-tape carrier 34 35 36 37 within but independentlyof the reciprocating carriage, there is provided an endless belt 49,(see Figs. 2, 3, and 5,) which derives motion from a pulley 38 on theshaft 27 of the lower delivery-pulleys 28, the said belt running over apulley 39 on the front-tape pulley-shaft 35 for thereby driving thetapes and running thence over an idler-pulley 40, turning on a fixedstud 41 on the rear part of the carriage, thence around an idler-pulley42, (see Figs. 5, 6, and 65%,) which is represented as carried by theshaft 43, though it might turn on a specially-provided fixed pivot, andthence back to its driving-pulley 38. It will be seen in Figs. 2, 3, and5 that the said belt makes four loops, one around the pulley 38, anupper one around the pulley 39, a lower one around the pulley 42, and anintermediate one around the pulley 40. The said pulley 42 is free toturn on the said shaft in the direction of the arrow shown near it inFigs. 5 and 6*, but prevented from turning in the other direction by anysuitable detent. The detent represented consists of a hub 80, which isfitted to the shaft 43 and upon the exterior of which the said pulley 42is fitted and in the periphery of which there are, as shown in Fig. 6%,a number of ratchet-like notches containing antifriction-balls 8l. Thesaid hub is held stationary by an arm 82, which projects from it andwhich is fastened by a screw 83 to a stud 84, secured in the ad-` jacentstand 50. A collar 82"", which is shown in Fig. 6 secured to the hub 80by screws 83:Jf for holding'the pulley 42 in its place, is omitted inFig. 6% to expose the ratchet-clutch to view. The purpose of theabove-described detent will be rendered intelligible by the descriptionwhich will be presently given of the operation of the reciprocatingcarriage.

It is to be' understood that the endless-tape carrier is operativewithin the carriage both when the iiy is used and when the reciprocatingcarriage is used for delivery; but its operation differs in the twocases. 1n the case of lthe fly-delivery when the carriage remainsstationary in its position near the cylinder the tapes run continuously,their only duty being that of receiving the sheets from thedeli-verylogwheels 28 and taking them to the proper position over the iiy while thelatter is thrown back under or between them. In the case of thecarriagedelivery when the carriage has its to-and-fro motion between thecylinder and receiving-table and a rest at its position near thecylinder the tapes run forward within but independently of the carriage,while the latter remains at rest. Then while the carriage runs forwardto its position over the table the tapes remain stationary within it,and then while the carriage returns toward the'cylinder the tapes againrun forward within it, and so carry the sheet out from it, leaving thelatter free to drop upon the table. These two different operations ofthe tape-carrier are produced by 27 by a key 32"", Fig. 9, and mesheswith a gear 85, which runs loosely onv a fixed axle, which, in thisinstance, is the stripper-shaft 25. On the hub of this gear 85 thereruns a gear 86, between Which and the said gear 85 there is a clutch86%, which couples said gears so that 85 carries 86 only in thedirection of the arrows shown opposite them in Figs. 10, 11,

12. The gear 86 meshes with a gear 87, whichis loose on the shaft 27 Thegears 32 87 are of corresponding size; but the gears 85 86 havedifferent numbers of teeth. In the example shown the gear 86 has onetooth less than 85. The said gear 87 carries on its outer face a clutch88 (see Figs. 9 and 12) in the form of an elastic ring which has anopening 89 at one point of its periphery and which is received in anannular groove 90 in the inner face of the belt-pulley 38. Thisclutch-ring, which is attached to the gear 87 by a screw 91, hasnormally an external diameter slightly smaller than the outer wall ofthe groove 90, as shown in Fig. 12, that it may be sufficiently loosetherein to make it inoperative; but for the purpose of expanding' itto'couple the pulley to the gear 87 there is inserted through the saidgear a pin 92, which has a Hatte-ned head which enters, as shown in Fig.12,v into the opening 89 of the clutch-ring. By the turning of this pin92 on its axis its head operatingwithin said opening 89. so expands thering that it fits tightly enough in the groove l 90 of the pulley forthe gear 87 todrive' the latter at the proper times, as hereinafterexplained. For-the purpose of so turning the pin 92 it has securelyaffixed to it an arm 93, which carries a truck-roller 94, which entersthe groove of a cam 95 (see Figs. 9 and 10) on the outerl face of thegearl32, which is keyed tothe shaft 27.

When the fly-delivery is used and the carriage lremains stationary infront of the cylinder, the cross-bar 33'* of the carriage serves as theback-rest for the iiy. For this delivery the shaft 43 is liberated fromthe sleeve 57, Fig. 6, by taking out the screws 63, and the pulley 38 isfastened to the shaft 27 by any suitable means as, for example, by asetscrew 96, (shown in Fig. 8)-and the gears 85 86 87 then run looselyWithout effect, the difference between the gears 85 86 being compensatedfor by the clutch 86%. The upper and lower loops of the driving-belt 49then occupy the positions shown in Fig. 3, being of nearly equal length,and the middle loop is very little shorter. The belt then simply runscontinuously on the pulleys 38 39 40 42 lin the direction of the arrowsshown near it in Fig. 3, and the tapes run forward continuously in thecarriage toward the receivingtable. All that has to be done to change tothe carriage-delivery is to take out the fly from its bearings 52 tofasten the sleeve 57, Fig. 6, to the shaft 43 by the screws 63 and toloosen the pulley 38 from its shaft 27. The f said pulley 38 thenreceives its motion for driving the belt in the direction just describedfrom the gear 32 through the gears 85 86 87 and clutch 88. This motionthen only takes place while the carriage is at rest in front of thecylinder for receiving the sheet, the clutch 88 then being in operation,as hereinbefore described. `J ust before the carriage begins its forwardmovement the clutch 88 liberates the pulley 38, which then ceases todrive the belt, and although as the carriage runs forward, as it isrepresented as doing in Fig. 5, the portion of the belt between thepulleys 42 and 41 runs toward pulley 39 over pulley 38, which is nowfree to revolve on shaft 27 with a tendency to slacken and stop travelof tapes, but not to drive them in opposite direction by said pulley 39,because the friction of the carrier in the carriage is more than thefriction of pulleys 44 and 38 on their said bearings, which are shafts27 and 43. Hence as the tapes do not run in the carriage, but onlytravel with it,V

the sheet simply lies upon them until the carriage completes its outwardmovement. During the time that the carriage is returning toward thecylinder the clutch 88 still leaves the pulley 38 disengaged, andalthough 'this movement of the carriage might develop a tendency to movethe belt in the opposite direction to that before described such movement is prevented by the detent shown in Fig. 6%4 and the pull of thepulley 40 on the intermediate loop of the belt formed between thepulleys 42 and 39 draws the belt tightly to and over the pulley 39 andcauses it to turn the said pulley, andso move the tapes forward withinthe carriage-as the latter runs back toward the' cylinder. By thesemovements of TOO ITO

the carriage and tapes the sheet is run out lt will be understood thatin the use of thev carriage-.delivery those movements of the endlesscarrier in the carriage which 'take place while the carrier is atrestnear the cylinder for the reception of the sheets are only necessaryduring the alternate revolutions of the impression-cylinder. It is forthat reason that I proyideva clutch of suitable kind-such as 88, forexample-for engaging the belt-driving pulley 38 with its driving-gear 87and means-such, for example, as those illustrated in Figs. 8, 9, 10, l1,l2-for producing and maintaining such engagement during a suitableportion of every other revolution and the disengagement during theintervening revolutions. To effect this, the cam 95 is so formed andproportioned that by its action on the pin 92 it operates during a'suitable portion of each of its revolutions to expand and.

tighten the clutch 88 and during another portion of each of itsrevolutions to permit the contraction and loosening thereof, and thedifferential gears 86 are so proportioned that the gear 87, whichcarries the clutchsp`reading pin 92, will lose a half-revolutionrelatively to the gear 32. which carries the pulley-clutch 88, for eachrevolution of the impression-cylinder or a whole revolution during eachcomplete cycle of the press. rIhe several gears above described are ofcourse all so proportioned to each other and to the gear 29 on thecylinder as to give the proper number of revolutions to the pulley.

What I claim as my invention isl. In a printing-machine, the combinationof an impression-cylinder, a receptacle for printed sheets, areciprocating sheet-carriage and stationary ways therefor between saidcylinder and receptacle, a Hy arranged. between said cylinder andreceptacle, an endless carrier common to both said sheet-carriage andsaid Hy'for receiving sheets from the cylinder, and means for operatingsaid carriage, carrier and Hy whereby sheets may be delivered printedside up by the carriage or printed side down by the Hy.

2. In a printing-machine, the combination of an impression-cylinder, areceptacle for printed sheets, a reciprocating sheet-carriage andstationary ways therefor between said cylinder and receptacle, a Hyarranged between said cylinder and receptacle, an endless carrier insaid sheet-carriage for receiving sheets from the cylinder, and meansfor operating said carriage, carrier and Hy whereby sheets may bedelivered printed side up by the carriage orv printed side down by theHy.

3. In a printing-machine, the combination of an impression-cylinder, areceptacle for printed sheets, a reciprocating sheet-carriage and waystherefor between said cylinder and receptacle, a Hy arranged betweensaid cylinder and' receptacle, a shaft and gears thereon one for drivingthe carriage and another for operating the. Hy, and means for fasteningone of said gears to said shaft and unfastenillg it therefrom to renderthe carriage operative or inoperative.

4. In a printing-machine, the combination of an impression-cylinder, areceptacle for printed sheets, a reciprocating sheet-carriage and waystherefor between said cylinder and receptacle, a Hy arranged betweensaid cylinder and receptacle, a shaft and a sleeve capable of turningthereon, meansfor producing rotary motion of said sleeve in oppositedirections alternately, a gear fast on said sleeve for operating the Hy,gearing fast on said shaft for operating the carriage, and means forfastening said sleeve to said shaft and unfastening it therefromaccording as the carriage or the Hy is to be operative.

5. In a printing-machine, the combination of an impression-cylinder, areceptacle for printed sheets, a sheet-carriage having a toand-fromovement between said cylinder and receptacle, an endless carrier insaid carriage for the reception of sheets from the cylinder, a pulley ingear with and deriving rotary motion from the cylinder, a pulley on oneof the shafts of the endless carrier, an idlerpulley on the carriage, anidler-pulleyand a pivot therefor in fixed position, and a driving-beltfor said tapes running on the four pulleys.

6. The combination with the impressioncylinder, the reciprocatingsheet-carriage and the endless carrier in said carriage, of a pulley ingearwith and deriving motion from the cylinder, a pulley on one of theshafts of the endless carrier, an idler-pulley on the carriage, anidler-pulley and a pivot therefor in a fixed position, a detent for thelatter pulley to restrict its rotation to one direction, and a beltrunning on the several pulleys for driving the carrier within butindependently of the carriage. A

7. In a printing-machine, the combination with a shaft for operating thesheet-delivery, a gear on said shaft anda rack engaging with said gearfor giving it a rotary motion in opposite directions alternately, of arotary shaft, a crank on said shaft, a connection between said crank andrack, and means for rendering said crank inoperative during a portion ofits revolution for holding the sheet-delivery device stationary at theend of its backward movement.

8. In a printing-machine, the combination with a shaft for operating thesheet-delivery, a gear on said shaft and a rack engaging with said gearfor giving it a rotary motion in opposite directions alternately, of acrank-shaft, a crank-arm on said shaft, a crank-wrist tted to movewithin said arm toward and from its shaft, a connection between thecrank-wrist and rack, and a stationary cam with which said wrist engagesfor controlling its movements to produce the forward and backwardmovements of the sheet-delivery device and to hold said devicestationaryfor a time at the end of its backward movement.

9. In a printing-machine, the combination with a shaft for operating thesheet-delivery, a gear on said shaft and a rack engaging with said gearfor giving it a rotary motion in opposite directions alternately, of acrank-shaft, a crank-arm on said shaft, a crank-wrist fitted to movewithin said arm toward and from its shaft, a connection between thecrank-wrist and rack, and a stationary cam with which said wrist engagesfor controlling its movements to produce the forward and backwardmovements of the sheet-delivery device, the gradual'stoppage of saiddevice at the end'of its backward movement and the gradual starting ofsaid device on its forward movement.

l0. In a printing-machine, the combination with the impression-cylinderand an endless delivery-carrier, of apulley on said carrier and a pulleybetween said carrier and the cylinder, gearing between the latter pulleyand thecylinder, a belt running on said pulleys for driving saidcarrier, and means for engaging said gearing with the cylinder anddisengaging it therefrom during alternate revowith theimpression-cylinder and a sheet-receptaclefor printed sheets, of areciprocating sheet-carriage and an endless carrier therein between saidcylinder and receptacle, means for giving said carriage a to-and-fromotion between the cylinder and said receptacle and a rest while at thatend of its movement when it is nearest the cylinder, a pulley and beltfor driving said carrier in the carriage, gearing between said pulleyand the cylinder for driving said pulley and belt, and clutch mechanismfor engaging said gearing with the cylinder while the carriage is so atrest, and disengaging it at other times.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 26th day of June, 1903.

l.HOWARD M. BARBER.

